This list of birds of Wisconsin includes species documented in the U.S. state of Wisconsin and accepted by the Records Committee of the Wisconsin Society for Ornithology (WSORC). As of July 2022 there were 441 species and a species pair included in the official list. Of them, 96 are classed as accidental, 34 are classed as casual, 53 are classed as rare, ten have been introduced to North America, and two are known to be extinct and another is thought to be. An additional 12 species are classed as hypothetical, and one is provisional.